<template>
  <div class="question-container">
    <el-card>
      <!-- 筛选 -->
      <el-form label-width="80px" size="small">
        <el-row>
          <el-col :span="6">
            <el-form-item label="关键字">
              <el-input
                ref="mykw"
                placeholder="根据编号搜索"
                style="200px"
                v-model="requestParams.keyword"
              ></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="6" :offset="12">
            <el-form-item style="text-align: right">
              <el-button @click="clear()">清除</el-button>
              <el-button @click="filter()" type="primary">搜索</el-button>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <!-- 数据记录 -->
      <el-alert
        :title="`数据一共 ${total} 条`"
        style="margin-bottom: 15px"
        type="info"
        class="alert"
        :closable="false"
        show-icon
      ></el-alert>
      <!-- 列表 -->
      <el-table :data="questions">
        <el-table-column label="编号" prop="id" width="220px"></el-table-column>
        <el-table-column label="题型" width="80px">
          <template slot-scope="scope">
            {{
              questionType.find(
                (item) => item.value === +scope.row.questionType
              ).label
            }}
          </template>
        </el-table-column>
        <el-table-column label="题目编号" width="220px">
          <template slot-scope="scope">
            <div v-for="item in scope.row.questionIDs" :key="item.number">
              <a
                href="#"
                @click.prevent="openPreviewDialog(item)"
                style="color: #09f"
                >{{ item.number }}</a
              >
            </div>
          </template>
        </el-table-column>
        <el-table-column label="录入时间" width="180">
          <template slot-scope="scope">
            {{ scope.row.addTime | parseTimeByString }}
          </template>
        </el-table-column>
        <el-table-column
          label="答题时间(s)"
          prop="totalSeconds"
        ></el-table-column>
        <el-table-column
          label="正确率(%)"
          prop="accuracyRate"
        ></el-table-column>
        <el-table-column label="录入人" prop="userName"></el-table-column>
        <el-table-column label="操作" width="80px">
          <template slot-scope="scope">
            <el-button
              plain
              type="danger"
              size="small"
              circle
              icon="el-icon-delete"
              @click="delQuestion(scope.row)"
              title="删除"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        style="margin-top: 20px; text-align: right"
        background
        layout="prev, pager, next, sizes, jumper"
        :total="total"
        :page-size="requestParams.pagesize"
        :current-page="requestParams.page"
        @current-change="pager"
        :page-sizes="[20, 30, 50, 100]"
        @size-change="handleSizeChange"
      ></el-pagination>
    </el-card>
    <!-- 预览 -->
    <questions-preview
      ref="questionPreview"
      :data="questionInfo"
    ></questions-preview>
  </div>
</template>

<script>
import {
  randoms as questionList,
  removeRandoms as questionDel,
} from "@/api/hmmm/questions";
import { difficulty, questionType } from "@/api/hmmm/constants";
import QuestionsPreview from "../components/topic-preview.vue";
export default {
  components: {
    QuestionsPreview,
  },
  data() {
    return {
      questionInfo: {},
      questionType,
      difficulty,
      total: 0,
      // 注意：如果响应响应式数据 先声明
      questions: [],
      requestParams: {
        keyword: null,
        page: 1,
        pagesize: 20,
      },
    };
  },
  async created() {
    this.getList();
    this.$nextTick(() => {
      this.$refs.mykw.focus();
    });
  },
  methods: {
    // 预览试题
    openPreviewDialog(questionInfo) {
      this.questionInfo = questionInfo;
      this.$nextTick(() => {
        this.$refs.questionPreview.open();
      });
    },
    // 删除题组
    async delQuestion(question) {
      await this.$confirm("此操作将永久删除该题组, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      });
      // 调用删除接口删除组题
      await questionDel({ id: question.id });
      this.$message.success("删除成功");
      this.getList();
    },
    // 清除搜索框内容
    clear() {
      this.requestParams.keyword = null;
    },
    // 搜索组题
    filter() {
      this.requestParams.page = 1;
      this.getList();
    },
    // 渲染组题列表
    async getList() {
      const { data: questionsData } = await questionList(this.requestParams);
      this.questions = questionsData.items;
      this.total = questionsData.counts;
      console.log(this.questions);
    },
    // 分页
    handleSizeChange(size) {
      this.requestParams.page = 1;
      this.requestParams.pagesize = size;
      this.getList();
    },
    pager(np) {
      this.requestParams.page = np;
      this.getList();
    },
  },
};
</script>

<style lang="scss">
.question-container {
  padding: 0 10px;
  margin: 10px 0;
}
.btn_wrapper {
  margin-bottom: 15px;
}
</style>
